212 NEUROPTERA. 
Hab. Unirep States, Round Mt., Texas (Schaupp, coll. P. P.C.: 1 2); Lowzr 
CauirorniA, San José del Cabo (Eisen, coll. P. P. C.: 3 3).—MExico, Uruapam 
(Deam:1 3), Cuernavaca (Deam, Barrett in coll. Adams: 23,12), Cuautla (Tower, 
coll. P,P. C.: 2 3). 
It will be noted that these “intermediates ’’ occur in the same localities as those in 
which usually both saturata and crocetpennis are also found. 
ce. form croceipennis. 
Libellula croceipennis, Selys, Ann. Soc. Ent. Belg. xi., C. R. p. Ixvii (1868) '; Hagen, Rep. U. 8. 
Geol. Surv. Terr. 1878, p. 586 (1874)*; Proc. Bost. Soc. Nat. Hist. xviii. p. 70 (1875) *. 
Libeliula saturata, Hagen, Syn. Neur. N. Amer. p. 152 (1861) (in part.) *; Calvert, Proc. Calif. 
Acad. Sci. (2) iv. p. 516 (1895) (in part.) °. 
Belcnia uniformis, Kirby, Trans. Zool. Soc. Lond. xii. p. 8333 (1889)°; Karsch, Ent. Nachr. xv. 
p. 842 (1889) ”. 
My measurements of B. uniformis in the British Museum in 1896 give the pterostigma as 6°5 mm., not 
8 mm.° 
Hab. Uniten States, Round Mt. in Texas (Schaupp, colls. A. N.S., P.P. C1: 2 8, 
3 2); Lowzr Catirornia, San José del Cabo (Eisen, coll. P. P. C.: 3 3), Cape San 
Lucas 2 3.—Mexico ® (coll. McLachlan: 1 3 with green label “ L. crocetpennis, Selys, 3 ,” 
in Selys’s hand, and label “ Libellula crocetpennis, Selys,” in McL.’shand; U.S. N. W.: 
1 3; coll. P. P. C. ex coll. Uhler: 1 2), Tampico ?34, Cordova?3 4, Orizaba1%, Vera 
Cruz!%, Cuernavaca (Deam: 2 3,1 2), Cuautla (Tower, coll. P. P.C.: 1 3), Isthmus 
of Tehuantepec? (Sumichrast, M.C.Z.: 1 2); Guatemata!’; Costa Rica, Carrillo 
[1 3 |, San José [1 2 | (Underwood *).—? Cotomsra ! 3, 
Taken in March (San José, Costa Rica), June (Texas), July (Cuernavaca), August 
(Cuautla), and October (San José del Cabo). 
The only objection to uniting wniformis with this species appears to be that the 
description ® gives the membranule as white; some of the present specimens have it 
pale brown, but in most it is grey. 
The females of form croceipennis much resemble those of Orthemis ferruginea, Fabr., 
but the synopsis on pages 198-200 indicates the’ differences between the two genera. 
From the females of L. foliata, croceipennis females differ by the longer pterostigma and 
the absence of a dark antehumeral stripe; from Z. herculea females they differ by the 
paler colours of the thorax and of the stigma, by the localization of the yellow colouring 
of the wings at the base, and from the Mexican and Central-American females of 
herculea by the less degree to which the vertex is bifid. 
The typical saturata, with its wings more extensively coloured than in croceipennis, 
also tends to denser venation ; thus it possesses a greater number of bridge-cross-veins 
* Specimens cited as collected by Mr. C. F. Underwood, beginning on page 158, are to be understood as 
belonging to the collection of the Editor unless otherwise stated. 
